The purpose of this article is to present the process for developing individual indexes of sustainable household actions in several thematic areas of sustainable consumption. These areas are energy efficiency, electricity and water consumption, food consumption, transport use and product disposal. Based on these individual indexes, a proposal for the creation of an aggregated individual household index for sustainable consumption is discussed. Based on the developed indexes, a segmentation of households into three basic segments is proposed. The proposed indexes are designed based on the results of a survey conducted among 342 households from the city of Varna, Bulgaria in the months of January - April 2022. The proposed indexes, after adaptation, can be used as a tool for self-assessment of sustainable household consumption in different cities and countries. In this sense, as a result of their implementation, it is expected that the motivation of households towards inclusion in sustainable consumption will be increased.